Improvement in stop-motions for warping-machines



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EDWIN H. oUMMINes'oF LHvvIsroN, MAINE, AND cRIMsHAW Havas ANDv 'rHoMAsHNrWrsrLn, or AooHINeroN, ENGLAND.

Letters Patent N0.113,028, dated March 28, 1871.

IMPRVEMENT IN STQP-MOTICJMS FOR WARPYINGMACHINES.

The Schedule 4referred to in these Letters Patent vand. making part 'ofthe same.

yWsTLE, of Accrington, England, have invented a new and usefulImprovement in Stop-Motion for Warping- Machines; and we doherebydeclare that the following is a full and exact description ofthesame,zrefer ence bei'ngjhad to the accompanying drawingA and to theletters of reference marked thereon.

This invention relates to` that'class of warpiugmachines which isprovided with devices for stopping 'the motion of the machine whenever athread breaks,

and consists in certain details of construction, which wilLbe fullydescribed hereinafter.

In the drawing- Figure. 1 represents a front elevation;

Figure 2, au end elevation partially in section Figure 3, a partial viewofthe opposite end iu perspective; and l Figure 4, the drop-wire andsectional view of the toothed wheel, with collarf f Toenable othersskilledin the art to make aud use our invention, `we will now proceed todescribe fullyits construction and manner of operation.

Ay A represent thev framework of the machine, which may beconstructed'of any proper form and material.v The machine is provided,of course, with the usual devices for winding the thread from the spoolsonto the beam, but these need not be particularly described.

B represents a beam or bar, which extends across the machine below theside frames, and is provided with longitudinal slots extending throughit, as shown.

C represents a bottomless box, located beneath thebeam B, arid providedwith inclined sides c c, as shown.

c' cf represent projecting horizontal bars at each end, which rest uponways d d,- suitably attached to the in# Iier sides of the side frames A.s

This box receives a reciprocating or oscillating motion from therock-shaft E by means of arms e e, as

shown. 1

The shaft E turns-in suitablebearings inthe side frames, and receivesits motion from the drum or roller F, which is provided at one end witha cam-groove, which operates, by means of a friction-roller, the rod e1,attached to the arm e2.

The cam-groove maybe of any proper form to give the desired movement.

G represents a bar, having one or more ledges or rabbets upon one orboth edges, which is located below the oscillating box C. It issupported upon the rock-shaft G by means of arms g y.

The shaft G'-`liang s in suitable bearings depending from the sideframes, and hasattached to one end, which extends outward beyond itsbearing, an arm or lever,'g, the lower end of which is bent inward atright angles, and Aformed with an. inclined face, as shown. It has alsoattached to it au arm, g2, to the lower end ol' which latter is attachedone end of a spring, g3, the

other being secured to the frame, as shown..

.H represents a U-shaped spring-bar, the end of the short arm h of whichis rigidly secured to one of the lower beams of the frame. Its long armh1 istwisted on itself at right angles at a point near its center, andit terminates above in a'suitable handle.

This long arm or handle vh moves toward and from the frame oua slotinthe angle-iron'hz.

'The outer end of the slot is provided with a recess, h, in which thearm h1 rests when the machineis Vin motion. y v p H' represents abar,rigidly attached to the arm hl at right angles thereto, which projectsinward toward the frame' beneath the pawl I. v Its upper edge isiuclined at its free end, for the purpose of lifting .the pawl when thearm hl is drawn outward.

p' J represents a rod'or bar, which extends across the frame, resting insuitable bearings at each end,'and so arranged as to be. capable of alongitudinal movement thereon.` One end lis connected to theA arm hl bymeans of pins, whichextend beyond it on each side, and the other end isprovided with an arm, j, for shipping the belt, which is constructed inthe usual well-,known manner. v

v K represents ia trough, which is supported in vany proper manner inline beneath thebottomless box O, which is designed to receive thedrop-wires that fall when threads are broken.

s L repres'ents a toothedwheel, loose upon the drivingLshaft E',1vhichbears against the`collar l, attached to the shaft so as to revolvewith-it. s M represents a drop-wire, constructed of a single piece ofwire bent in oval or link-shaped form, which is provided with an openingupon one side, las shown.

The operation is as follows: .s Thethread is wound in any proper mannerfromthe spools onto thewarper-beam. In itspassagefrom the former to thelatterit passes over the slotted beam B. Atthis point the drop-wires areplaced upon the threads by means of the opening in the sides, and,resting in the slots of the beams, they are thereby held from movingwith the thread. Whenever a thread becomes broken from any cause, itswire of course, be-

ing no longer sustained by it, falls through the slot of the beauiB intothe reciprocating bottomless box O, situated immediately below. Itsmovement is here stopped, however, temporarily, for, although the box 0has no bottom, the bar G, being located j ust below,

catches and sustains it in the depression orledge upon.

its edge until the backward movement of the box has forced the bar Gbackward by pressing the wire, which still rests partially within thebox.

The movement of the bar G causes its arm g1 to press against the arm71.1 and free it from the recess h2 in the slotted bar, in which itrests when the machine is in operation.

The movement of the bar G is facilitated also by the operation of thespring y. The spring of arm g2 is to keep the inclined face of arm g1against arm h1, so that it will follow arm 71.*, thereby moving bar Gback far enough to allow the wire to drop through into its receptacle.rI he movement of the arm h1 is also facilitated by its own spring,which exerts its force to draw it on toward the frame. l

The movement of the arm h1 causes the operatingbelt at theA opposite endof the machine to he transferred from the fast to the loose-pulleythrough the medium ofthe bar J, with its arm j, and, at the saine time,also permits the pawl I to fall Vby moving from beneath it theprojecting end of the arm H. When the pawl falls, it, of course, comesin contact with the toothed wheel L, andinstantly stops its movement. Inorder to prevent the machinery from being so suddenly stopped as tocause breakage this wheel is made loose upon the shaft, and is connectedto it only by the friction-collar, which revolves with it. By means ofthis construction all undue strain ofthe machinery is prevented.

It will thus be perceived that the breaking of a thread permits a wireto fall, which comes in contact with the bar G as the box C moves backand forth, and, forcing it back, thereby operates the arm h1, which, bymeans of its connections, shifts the belt and lets fall the pawl, whichstops the motion ofthe machine.

Having thus fully described our invention, i What we claim as new, anddesireto secure by Letters Patent, isl 1.' The oscillating box C,constructed and arranged substantially as described.

.2. 'Ihearmr g1, provided with its tapering face, in combination withthe arm h1, as described, for the purpose set forth.

3. The combination of the box 0 and bar G, as-de scribed.

4. The combination of the toothed wheel L, friction-collar l, and itsadjusting-nut, with the pawl I and the arm h', or its equivalent, foroperating the latter, as described.

5. The combination ofthe slotted beam, oscillating box, bar G and itsconnections, with the larm hl and its connections, as described.

6. The described method of stopping the motion of a warping-machine bymeans of a wire held by an oscillating box coming in contact with a beamor bar which operates the shipping-arm.

This specification signed and witnessed this 17th

